Chemistry Quizzes For Grade 6, 7 And 8 6n5769

1. What is the first element on the periodic table? 2. What is the centre of an atom called? 4. What is the main gas found in the air we breathe? 5. True or false? An electron carries a positive charge. 7. What is the chemical symbol for gold? 8. K is the chemical symbol for which element? 9. What orbits the nucleus of an atom? 11. True or false? A neutron has no net electric charge. 13. What is H20 more commonly known as?

18. Atoms of the same chemical element that have different atomic mass are known as? 19. True or false? A proton carries a positive charge.

Chemistry Quiz Answers 1. Hydrogen

2. A nucleus

3. True

4. Nitrogen (around 78%)

5. False

6. Chemistry

7. Au

8. Potassium

9. Electrons

10. Mercury

11. True

12. Nuclear fission

13. Water

14. Argon (around 1%)

15. Reactants

16. False

17. Base

18. Isotopes

19. True

20. Carbon